Improvement in cotton-gins



. 2 Sheets--She et 2. 0. G. DEW EY.

Cotton-Gin,

No. 163,465 Patented Ma 1a,1a15.

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241L9 4 awawaeaze-asunaw-w wm l M I I ll 1! LA ATTORNEYS THE GRAPI'HC C0.PHDTOLITH.39&41 PARK PLAOEJLY.

UNITED STATES PATENT OFFICE ORVILLE O. DEWEY, OF WHEELING, WEST VIRGINIA.

IMPROVEMENT IN COTTON-GINS.

Specification forming part of Letters Patent No. 163,465, dated May 18, 1875; application filed March 27, 1875.

To all whom it may concern:

Be it known that 1,0RVILLE G. DEWEY, of Wheeling, in the county of Ohio and State of West Virginia, have invented a new and valuable Improvement in Cotton Gins; and I do hereby declare that the following is a full,

7 clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figures 1 and 2 of the drawings are representations of side views of my gin, and Fig. 3 is a plan view of the same. Fig. 4 is a vertical sectional view.

This invention has relation to the mode of operating the saws and brushes of cotton-gins; and it consists in the construction and novel arrangement, in connection with the shafts of said saws and brushes, of two belt-wheels, automatically adjustable toward or from each other, and connected by a belt on each side of the gin-frame, said belt-wheels operating by frictional contact to give motion to the intermediate friction-gear, of comparatively small size, on opposite sides of the said gin-frame, and on the relatively opposite ends of the sawshaft and brush-shaft, as hereinafter more fully shown and described.

In the accompanying drawings, the letter A designates the frame of a gin, or, more particularly, of that portion of a gin which contains the breast. B represents the saw-cylinder, havingits journals seated in suitablyarranged bearings in the frame, and provided with a belt-wheel, b, at one end, and at the other with a friction-wheel, b, of comparatively small size, both gears being arranged outside the vertical side walls a, of the frame. 0 designates the brush-cylinder, having its journals in slightly-elongated bearings, and

provided with a friction-wheel, c, on the opposite side of the frame from that on which the friction-wheel b of the saw-cylinder shaft is located. The friction-wheel b of the sawshaft is located between the power-wheel a and its fellow belt-wheel c, which is journaled in the pivoted arms (I, which extend upward and toward the journals of the belt-wheel in an oblique direction, parallel with each other,

to permit said journals to be moved automatically in the direction of the strain of the belt 6, which connects the belt-wheels. The friction-wheel c of the brush-shaft is arranged in a similar manner between the belt-wheel I) on the end of the saw-shaft and its fellow beltwheel 6, which is journaled in pivoted arms d, similar to the arms cl above described, and also arranged obliquely to the direction of strain of the belt 6, connecting the two. These friction-wheels b and c are in contact with the belt-wheels of each belt on each side, so that the strain of the belt will tend to assure the frictional contact. Therefore I obtain rapidity of action from the comparatively small size of the friction-wheels relatively to that of the driving-wheels, and at the same time "certainty of actionqualities of great importance in ginning. Through the medium of the oblique arms 01 d of the belt-wheels 0 e on each side, these belt-wheels accommodate themselves automatically to the strain of the belt; and when the belt is comparatively loose upon the belt-wheels the contact of those wheels which are carried on the arms at d with the friction-wheels of the saw-shaft and brushshaft will be kept up by the movements of these belt-wheels and the belts. The rapid action of the saws and brushes will, in a great measure, prevent clogging; but should the saws be obstructed they are not so liable to be broken as when toothed gearing is employed.

WVhat I claim as new, and desire to secure by Letters Patent, is

The combination, with the saw-shaft and brush-shaft, of the automatically-adjustable belt-wheels c c, the belt-Wheels a b, the belts e c, and the friction-wheels b a, respectively arranged each between a pair of said beltwheels on the relatively opposite ends of the saw-shaft and brush-shaft, substantially as shown and described.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

ORVILLE (J. DEWEY.

Witnesses:

J 0s. B. LooMIs, GEORGE E. UPHAM. 

